Frequently Asked Questions

It will not. The device will only connect to a wifi routers main 2.4GHz signal. It will not connect to a guest account or a Mesh networks secondary nodes. To get around having to use a wifi router you can use our Observerip module which will connect directly to a router via an ethernet cable and remove the need for wifi.

Lightning sensors detect a specific radio frequency wave form generated by lightning strikes.

However, electronic devices like motors starting (HVAC units, lawn equipment), and fluorescent lighting can emit noisy electromagnetic field (EMF) signature that can generate a false positive lightning strike.

To avoid false lightning strikes, move the detector away from any electrical noise-generating devices.

Although electrical noise can be random in nature, another way to determine installation location is by using a portable AM radio set in between stations where you can hear white noise only, and hold the radio close to the installation location. Any crackling heard on the radio may be detected by the WH31L lightning detector.

1. If AmbientWeather.net stops reporting but WeatherUnderground.com continues to update, power down and up your console by removing batteries and AC power. There may have been a DNS server change that was not updated on the console.
2. If the problem persists, power down and up your wireless router.

1. Power down and up the console by removing batteries and AC power. If the problem persists,
2. Reboot your router. If the problem persists,
3. Perform a factory reset:
4. Remove the power from the console by removing the batteries and disconnecting the AC adapter.
5. Apply power by connecting the AC adapter.
6. Wait for all of the segments to appear on the screen:
   
7.  Press and hold the WIND/+ and PRESSURE/- buttons at the same time until the console power up sequence is complete (about 5 seconds).
8. Replace the batteries.
9. You are now starting over. Reference the section in the manual for connecting the console to WiFi and the Internet.
10. Connect directly to your wireless router and not a repeater or range extender.

Return to Help Center >>

Apps By Ambient Weather:

 Ambient Weather Dashboard by Ambient Weather (Android). The Ambient Weather App requires that you must own a weather station that reports data to AmbientWeather.net. You can stream live, real-time, data from your weather station to the internet as well as view charts and graphs of historical data. You can view information like temperature, humidity, rainfall, ultraviolet radiation, and more, directly from your device. more info

 Ambient Weather Dashboard by Ambient Weather (Apple iOS). The Ambient Weather App requires that you must own a weather station that reports data to AmbientWeather.net. You can stream live, real-time, data from your weather station to the internet as well as view charts and graphs of historical data. You can view information like temperature, humidity, rainfall, ultraviolet radiation, and more, directly from your device. more info

Ambient Weather Network Works With:

   IFTTT. Connect your weather station sensors and AmbientWeather.net to IFTTT, and control external devices, like smart blinds, irrigation and sprinkler systems, lights and switches. more info

   Amazon Alexa. The Ambient Weather Amazon Alexa skill provides Ambient Weather personal weather station owners with the ability to get real-time, and past weather information generated by the devices you have set up at AmbientWeather.net – more info

  Google Home. The Ambient Weather Google Home app provides Ambient Weather personal weather station owners with the ability to get real-time, and past weather information generated by the devices you have set up at AmbientWeather.net – more info

 PWSWeather. Connect your weather station sensors and AmbientWeather.net to PWSWeather, to share your weather data online and integrate with Rachio Sprinklers – more info

  WeatherUnderground.com. Connect your weather station sensors and AmbientWeather.net to WeatherUnderground, to share your weather data online – more info

  Home Assistant by Aaron Bach. Connect your weather station sensors and AmbientWeather.net to Home Assistant, and control external devices in your Home Assistant environment – more info

  SmartThings by Kurt Sanders. Connect your weather station sensors and AmbientWeather.net to SmartThings, and control external devices in your SmartThings environment – more info

Note:Samsung no longer supports Groovy as of 03/2022

  CWOP Reporting by Dan Muntz  Connect your weather station sensors and AmbientWeather.net to CWOP, to share your weather data online – more info

  HomeSeer. Connect your weather station sensors and AmbientWeather.net to HomeSeer, and control external devices, like HVAC, security, lights and switches –more info

Saratoga Templates by Ken True (AJAX or php). Create your own weather website with your live weather station data generated by the devices you and others have set up at AmbientWeather.net – more info

  Weather Station by Pierre Lannoy (Plugin for WordPress). Weather Station is a free WordPress plugin that collects meteorological data from AmbientWeather.net and displays it in many elegant ways: gauges, LCD, charts, and heat maps. It makes it very easy to use the weather data from one or more stations in a site made with WordPress. – more info

  Ambient Weather NodeServer for Universal Devices ISY994i Automation Platform by SimplexTech.net

This Polyglot NodeServer integrates real-time AmbientWeather.Net API into the UDI ISY system providing data feed information of all the sensors on your Ambient Weather PWS.  This information can be used to optimize your Home or Business automation. – more info

  Ubidots IoT Development Platform by   ubidots.com.  Integrate AmbientWeather.Net API into Ubidots IoT Development Platform to analyze Weather Stations Data by using its Analytics Engine, Dashboard customization, Scheduling Reports and Management of alerts/events to control third-party devices. – more info

ambientweatheR R package by Andrew Flack. ambientweatheR is an R package that makes it easy to interact with the Ambient Weather REST API, providing programmatic access to a user’s weather station data, and converts it to other simple formats. The package provides wrapper functions to list a user’s devices and to fetch data for a given device. – more info

 openHAB by Mark Hilbush. openHAB empowers the Smart Home. The Ambient Weather binding integrates weather station data that’s stored on the Ambient Weather online service. The binding uses Ambient Weather’s real-time API, so updates from weather stations are delivered to the binding in near real-time – more info

Apps We Like:

  Weather Display by Brian Hamilton (Windows, OSX, Linux). Weather Display is weather monitoring software that receives real time and historical weather data from the AmbientWeather.net network. Weather Display is a powerful and customizable software package that sends your data to a wide range of cloud services, and FTP to your own personal web site. more info

 WeatherSnoop by TEE-BOY (macOS). WeatherSnoop is the premier weather station software for your Mac! With support for nearly a dozen stations, you can share your personal weather data online easily. Customizable dashboards give you the power to visualize your weather data using graphs, gauges, and more. And WeatherSnoop’s extensible plug-in architecture makes it easily expandable and upgradable. more info

  Weather Underground by Weather Underground, LLC (iOS and Android). The most hyper-local weather data wherever you are in the world generated by the devices you and others have set up at Wunderground.com – more info

  Wunderstation by Weather Underground, LLC (iOS iPad and iPad Pro). Your personalized, all-inclusive home weather dashboard generated by the devices you and others have set up at Wunderground.com – more info

  PWS Weather Station Monitor by Matt Brady (iOS). Weather readings and charts generated by the devices you and others have set up at Wunderground.com – more info

 AW-DASH by Ciro Ippolito (Windows). AW-DASH replicates the look and feel of a WS-2902 LCD display. The app uses Ambient Weather’s real-time API, so updates from weather stations are delivered in near real-time – more info

 JWeatherWatch by Julian Werfel (Apple WatchOS). JWeatherWatch is an Apple Watch App that allows you to view your weather station information from your watch. You can view current weather information from all of your weather stations and view the current temperature on the watch face. – more info 

Lawn Journal by Austin Van Alfen (IOS). Connect your weather station and AmbientWeather.net to Lawn Journal to display your station's weather data while you keep track of your lawn's progress. - more info

Ambient Weather Network Facebook User’s Group:

Facebook Ambient Weather Network User’s Group. Join the private Ambient Weather Network Facebook User’s Group, and share and compare info with thousands of other like-minded weather station owners – more info

Ambient Weather Network API:

  AmbientWeather API RESTful And Real-Time APIs.

Retrieve your own real-time and historical personal weather station data, or build 3rd party apps and get data from multiple devices.

The Ambient Weather Network API makes it easy for programmers to integrate historical and present weather data into the application you design, generated by the devices you have set up at AmbientWeather.net.

For more information about our API, please visit: AmbientWeather.com/api.

  Facebook API Group. Join the private Ambient Weather API User’s Group, and ask questions and get answers from other programmers familiar with the Ambient Weather Network API – more info

  GitHub.You’ll find Ambient Weather API sample apps, developer tools, and even our documentation. Share your code with the community. – more info

You can only download data to a PC, Mac or Linux Desktop or Laptop computer. You cannot download data to a tablet or smart phone due to device limitations.

To download data from AmbientWeather.net:

1. Switch to Data View by selecting the Data icon .
2. Pick a data range by selecting the calendar .
3. To download data for the date range, tap the download icon .

You will be prompted to export All Data (5-minute), or the Daily Summary Data:

A status bar will provide the percent-download completed:

Save the csv files (comma separated value)  to your computer.

For more information on csv file definittion, visit: https://en.wikipedia.org/wiki/Comma-separated_values

csv files can be read by most data management programs, such has Excel, MySQL and more.

Here is the format for the time and date field:

What Is The Time Format For AmbientWeather.Net Data Files?

If you are a programmer, consider our API for automatically downloading data:

API

You can also use a third party application, such as WeatherSnoop for Mac and Weather Display for PC:

Community

Return to Help Center >>

Product Page
https://www.ambientweather.net

To change your station name or location name, go to the devices panel:

https://ambientweather.net/devices

and enter change it by tapping on the station name field:

Product Page
https://www.ambientweather.net

Link your account to get started: say ‘Hey Google, Ambient Weather… weather report.’This will provide you with your outdoor weather report. You can ask for your indoor weather report as well by saying, ‘ indoor conditions’.

Here are some sample commands:

• Weather Report
• Outdoor conditions
• Indoor conditions
• Yesterdays weather
• Conditions for October 15, 2017
• Conditions for September 2017
• Conditions for 2016

Product Page
https://www.ambientweather.net

You can share a web link to AmbientWeather.net or add html code to your own website.

You can also decide whether to keep your indoor sensors public or private.

Tap on the Share  button at the top of your devices panel:
https://ambientweather.net/devices

Share Link:
Here is an example web link to share with friends and family:

https://ambientweather.net/devices/public/852d87e2ea99473059676ef7f08f4893

Embedded Share:
Add a snippet of html code to your own website to share with the world. You can decide whether to keep your indoor conditions public or private.

Product Page
https://www.ambientweather.net

AmbientWeather.net not only features a mobile friendly and responsive dashboard that works well on any platform (desktop, laptop, tablet or mobile device) but also features apps for iOS and Android Devices as well as third party apps.  You can bookmark your dashboard here:

https://ambientweather.net/dashboard

or download apps here:

Community

For programmers:

We developed an Application Programming Interface (API) that will allow you and others to write applications and integrate with other products (above and beyond the current features like text alerts, email alerts, IFTTT, Google Home and Amazon Alexa).

You can learn more here:

API

To view apps developed using the AmbientWeather.net APIs and Wunderground.com, visit our Community Page:

Community

You can keep track of what is happening at our Ambient Weather Network User’s Group:

https://www.facebook.com/groups/ambientweathernetwork/

Product Page
https://www.ambientweather.net

Staring October 24, 2019, you can now search and share your weather station data with the public.

Anyone can create an account, even if you do not own a weather station, and send email and text alerts from your favorites.

Here is how it works. You can search for any weather station without logging in from our homepage:

AmbientWeather.net

If you create an account (lots of free benefits), select the location menu bar to view your personal stations and then search your location.

To make your station public, select Devices | Ambient Weather | Sharing | Make Public

Product Page
https://www.ambientweather.net

There are three ways to integrate your Rachio Sprinklers with Ambient Weather Stations and AmbientWeather.net:

• Upload your data to PWSWeather.com
• Use IFTTT
• Use our API for Developers

1. Upload your data to PWSWeather.com from your Devices Page on AmbientWeather.net.  PWSWeather has written an app that connects their service to your Rachio Sprinklers.

2. Use IFTTT.  Both AmbientWeather.net and Rachio support IFTTT (which stands for If This, then That), which is a standard, easy to use platform for connecting two devices together over the Internet.Here is an excellent article on IFTTT for beginners:

https://www.digitaltrends.com/cool-tech/what-is-ifttt-and-how-does-it-work/

You can learn more about AmbientWeather.net and Rachio here:

https://www.ambientweather.com/ifttt.html

Here is an example Applet:

https://ifttt.com/applets/gBeQdmTy-turn-off-the-rachio-sprinklers-and-send-a-gmail-alert-when-it-starts-raining

3. Use our API for Developers

https://www.ambientweather.com/api.html

which allows programmers familiar with JSON to integrate their own solutions.

Product Page
https://www.ambientweather.net

To share your weather station dashboard with others on your own website, use the embedded share feature.

Tap on the Share  button  on your devices panel:

https://ambientweather.net/devices

Copy the embed code and paste into the HTML of your web page where you would like for the dashboard to appear.

Adjust the width and height for your custom web page and then tap Copy Embedded Code. Paste the code into your web page.

powered by Ambient Weather

There is a bug with the Google Assistant App on both iOS and Android. However, the linking process does work using the Google home app on iOS.

The process should work like this:
1. You initiate the skill on your Google Assistant device (or in the Google Assistant app). It directs you to the google home app to link your account.
2. When you open the Google Home app you should see a link to connect your account on Ambient Weather. One thing we’ve noticed is that you may need to close the Google Home app (by double clicking the home button and swiping it up) and reopen it in order to see this connection link.
3. Clicking that link will bring you to ambientweather.net where you’ll need to login to your Ambient Weather account.
4. You will be presented with an authorize button that will link the devices together

That should be all it takes. Email support@ambientweather.com and let us know where the process breaks down for you.

Please include your MAC address and the email account you used to register at AmbientWeather.net.

Product Page
https://www.ambientweather.net

Data is stored at AmbientWeather.net at a rate of once per 5 minutes.

After one month, data is stored at a rate of once per 30 minutes.

Archived data is stored for one year. All data is removed after one year.

AmbientWeather.net includes an API, so developers can automatically retrieve your own real-time and historical personal weather station JSON formatted data, or build 3rd party apps and get data from multiple devices.

To learn more about our API, visit: www.AmbientWeather.com/api.html

You can also use one of the third party apps to automatically download data:

Community

Product Page
https://www.ambientweather.net

AmbientWeather.net updates once per minute. Your weather station updates faster than that in most cases.

The console takes a snapshot in time and sends the data to AmbientWeather.net.

It is just a snapshot in time. When the minute changes, it sends the data  –  no post processing or additional averaging.

The maximum daily wind gust (Max) as recorded by the display console is also displayed.

Product Page
https://www.ambientweather.net

Ambient Weather Manuals

1-9

1436R-12 | PDF

1436RS-22 | PDF

15-01 | PDF

1535-06 | PDF

1694R-22 | PDF

6152-AIRBRIDGE-KIT | PDF

6152C-WEATHERBRIDGE-KIT | PDF

6152-WEATHERBRIDGE-KIT | PDF

6153-AIRBRIDGE-KIT | PDF

6153-WEATHERBRIDGE-KIT | PDF

6162-AIRBRIDGE-KIT | PDF

6162C-WEATHERBRIDGE-KIT | PDF

6162-WEATHERBRIDGE-KIT | PDF

6163-AIRBRIDGE-KIT | PDF

6163-WEATHERBRIDGE-KIT | PDF

6250-AIRBRIDGE-KIT | PDF

6250-WEATHERBRIDGE-KIT | PDF

6251-AIRBRIDGE-KIT | PDF

6322-AIRBRIDGE-KIT | PDF

6357-AIRBRIDGE-KIT | PDF

A

AIRBRIDGE-KIT | PDF

AIRBRIDGE-RECEIVER-KIT | PDF

AMBIENTCAM | PDF

AMBIENTCAMHD | PDF

AMBIENTCAMHD3 | PDF

AW-YG637M | PDF

AW-YG737S-RD | PDF

B

BA212 | PDF

BA30806 | PDF

BAROMETER-26-M | PDF

BASWAN | PDF

BC-2000 | PDF

D

DHR70B-STAINLESS | PDF

E

EZ2-35W2MC | PDF

EZ-29-24 | PDF

EZ-30-12 | PDF

EZ-48-3AB-125-35 | PDF

EZ-GWA | PDF

EZ-HD-PTP | PDF

EZ-HD-PTP-100 | PDF

EZ-NPP | PDF

F

F007PF | PDF

F007T | PDF

F007TH | PDF

F007TP | PDF

G

GL164-M | PDF

H

HP816A | PDF

K

KTA-249-LCD | PDF

KTA-TEMP-50 | PDF

KTL-250-AL | PDF

M

MOBILEMOUNT | PDF

O

OBSERVERIP | PDF

P

PM25 | PDF

PM25IN | PDF

R

RAINSPIKE | PDF

RC-12112BS | PDF

RC-12116SB | PDF

RC-12118BW | PDF

RC-1800WSTH | PDF

RC-8300 | PDF

RC-8320 | PDF

RC-8365 | PDF

RC-8370 | PDF

RC-8401 | PDF

RC-8401A | PDF

RC-8427 | PDF

RC-8473 | PDF

RG100-B | PDF

S

SRS100LX | PDF

T

TIDECLOCK-21 | PDF

TIDECLOCK-22 | PDF

TIDECLOCK-23 | PDF

TIDECLOCK-25 | PDF

TM-206 | PDF

TransformaFence | PDF

TX-3102 | PDF

TX-3107 | PDF

W

WEATHERBRIDGE | PDF

WEATHERBRIDGE Nano | PDF

WEATHERBRIDGEPRO | PDF

WEATHERHUB2 | PDF

WEATHERMOUNT | PDF

WEATHERMOUNT2 | PDF

WEATHERMOUNT-STAINLESS | PDF

WH2C | None, see console Item Number

WH31 / WH31E | None, see console Item Number

WH31B | None, see console Item Number

WH31L | PDF

WH31LA | PDF

WH3C | None, see console Item Number

WH5 | None, see console Item Number

WH6 | None, see console Item Number

WM-2 | PDF

WM-3 | PDF

WM-35 | PDF

WM-4 | PDF

WM-5 | PDF

WR-089 | PDF

WR-090 | PDF

WR-091 | PDF

WR-099 | PDF

WR-111, WR-111A, WR-111B | PDF

WR-112 | PDF

WR-299 | PDF

WR-335 | PDF

WR-336 | PDF

WR-77 | PDF

WR-SOLAR-BAG | PDF

WS-01 | PDF

WS-01T | PDF

WS-01T-C | PDF

WS-0100 | PDF

WS-0101 | PDF

WS-0211 | PDF

WS-02, WS-02A | PDF

WS-0262 | PDF

WS-0262A | PDF

WS-0265 | PDF

WS-0270 | PDF

WS-03 | PDF

WS-04 | PDF

WS-05 | PDF

WS-06 | PDF

WS-07 | PDF

WS-08 | PDF

WS-0800-IP | PDF

WS-09 | PDF

WS-10 | PDF

WS-1000-WiFi | PDF

WS-1001-WiFi | PDF

WS-1002-WiFi | PDF

WS-1050 | PDF

WS-1070 | PDF

WS-1075 | PDF

WS-108 | PDF

WS-1080 | PDF

WS-1090 | PDF

WS-11 | PDF

WS-110 | PDF

WS-1170 | PDF

WS-1171 | PDF

WS-1171A | PDF

WS-1171B | PDF

WS-1172 | PDF

WS-1173 | PDF

WS-1173A | PDF

WS-1173B | PDF

WS-1175 | PDF

WS-12 | PDF

WS-1200 | PDF

WS-1201 | PDF

WS-1200-AIRBRIDGE-KIT | PDF

WS-1201-AIRBRIDGE-KIT | PDF

WS-1201-IP | PDF

WS-1280 | PDF

WS-1285 | PDF

WS-1400-IP | PDF

WS-1401-IP | PDF

WS-14 | PDF

WS-15 | PDF

WS-152B | PDF

WS-152BN | PDF

WS-152T | PDF

WS-1550-IP | PDF

WS-16 | PDF

WS-1900 | PDF

WS-2000 | PDF

WS-2063 Series | PDF

WS-2080 | PDF

WS-2080A | PDF

WS-208T | PDF

WS-208TBH | PDF

WS-2090 | PDF

WS-2095 | PDF

WS-21 | PDF

WS-228TBH | PDF

WS-23 | PDF

WS-23-C | PDF

WS-24 | PDF

WS-24-C | PDF

WS-25 | PDF

WS-26 | PDF

WS-2800 | PDF

WS-2801 | PDF

WS-2801A | PDF

WS-2902 | PDF

WS-2902-RAINSPIKE | PDF

WS-2902A | PDF

WS-2902B | PDF

WS-2902C | PDF

WS-3000-X3 | PDF

WS-3000-X5 | PDF

WS-3000-X8 | PDF

WS-40 Series | PDF

WS-50 Series | PDF

WS-5000 | PDF

WS-5000-RAINSPIKE | PDF

WS-5300 | PDF

WS-5305 | PDF

WS-70 | PDF

WS-7078 | PDF

WS-7079 | PDF

WS-8365 | PDF

WS-8400 | PDF

WS-8460 | PDF

WS-8482 | PDF

WS-8478A | PDF

WS-8480 | PDF

WS-8482 | PDF

WS-8600 | PDF

WS-B1025C | PDF

WS-G3303THB | PDF

WS-GA1141305 | PDF

WS-GA1141710 | PDF

WS-GA1142010 | PDF

WS-GL025 | PDF

WS-GL025-CM | PDF

WS-GL026 | PDF

WS-GL032 | PDF

WS-GL032-CM | PDF

WS-G3303THB | PDF

WS-HE01 | PDF

WS-HT12 | PDF

WS-HT350 | PDF

WS-L0801TBH | PDF

WS-L3303THB | PDF

WS-M0921THB | PDF

WS-MOF0831-CTH | PDF

WS-M2021301TB | PDF

WS-M201301THB | PDF

WS-MDF0705THB | PDF

WS-TB1071305 | PDF

WS-YG302A-G | PDF

WS-YG302A-Y | PDF

WS-YG313-G | PDF

WS-YG313-Y | PDF

WS-YG315 | PDF

WS-YG332 | PDF

WS-YG357 | PDF

WS-YG501 | PDF

WS-YG633 | PDF

WS-YG634 | PDF

WS-YG709 | PDF

WS-YG710-6 | PDF

WS-YG710S-G | PDF

WS-YG710S-Y | PDF

WS-YG720 | PDF

WS-YG901 | PDF

To change the default device, just say ‘Change device to’ followed by the name of your device.

Product Page
https://www.ambientweather.net

1. To move your device from one account to another, login to the old account and go to the Devices page:https://ambientweather.net/devices

   and tap on the trash can  to delete the device.

2. Logoff of your old account.
3. Login to your new account.
4. Go the the Devices page:
   https://ambientweather.net/devices
   and enter your weather station’s MAC address:

Product Page
https://www.ambientweather.net

You can view you Wi-Fi connected weather station from anywhere using Ambient Weather Network.

We have made a video to show you how below:

To switch between the graph view and data view on the dashboard, press the graph or data buttons to toggle between the two views.

Product Page
https://www.ambientweather.net

January 1, 2020 –

We discovered a monthly and yearly high and low value roll over issue. We will fix this shortly.

Regarding total rain, you must reset the total rain on your console if required. Check your owner’s manual for details.

Product Page
https://www.ambientweather.net

How much bandwidth does my Weather Station Require?

The amount of uploaded data is dependent on the number of services you upload to, and sensors you own, but here is a rough guide:

For AmbientWeather.net upload every 12 seconds

Data stream: 174 Bytes

Total data in 24 hours: 86400/12 * 174 = 1252800 Bytes = 1.2MBytes (i.e.  36MB per month)

For WeatherUnderground.com: upload every 12 seconds

Data stream: 196 Bytes

Total data in 24 hours: 86400/12 * 196 = 1411200 Bytes = 1.34MBytes (i.e.  40MB per month)

The total is approximately 76MB per month.

Products recommended for use with our equipment:

Batteries: Energizer Ultimate Lithium Batteries

Snow and Ice Repellent: DuPont Teflon Snow and Ice Repellent

Prevent Rain ‘Bounce’ From Funnel: DuPont Silicone Lubricant Aerosol

Micro-sd Card: Any 32Gb or smaller in storage size

Q: How long is the AC Adapter cord/cable?

A: Most of our AC Adapter cables/cords are 5-6 feet long

California Prop 65:

WARNING: Use of the Ambient Weather Products can expose you to chemicals, including lead and lead compounds, which are known to the State of California to cause cancer and bisphenol A (BPA), andphthalates DINP and/or DEHP, which are known to the State of California to cause birth defects or other reproductive harm.

Can I Trust that Ambient Weather Products are Safe Despite this Warning?

In 1986, California voters approved the Safe Drinking Water and Toxic Enforcement Act known as Proposition 65 or Prop 65. The purpose of Proposition 65 is to ensure that people are informed about exposure to chemicals known by the State of California to cause cancer, birth defects and/or other reproductive harm.A company with ten or more employees that operates within the State of California (or sells products in California) must comply with the requirements of Proposition 65. To comply, businesses are: (1) prohibited from knowingly discharging listed chemicals into sources of drinking water;and (2) required to provide a “clear and reasonable” warning before knowingly and intentionally exposing anyone to a listed chemical. Proposition 65 mandates that the Governor of California maintain and publish a list of chemicals that are known to cause cancer, birth defects and/or other reproductive harm. The Prop 65 list, which must be updated annually, includes over 1,000 chemicals, including many that are commonly used in the electronics industry.

Although our manufacturing process is “lead-free” and RoHS compliant, it remains possible that trace amounts of lead could be found in components or sub assemblies of Ambient Weather Products. Bisphenol A (BPSA) could conceivably be present in minute amounts in our plastic housings, lenses, labels or adhesives, and DEHP & DINP (phthalates) could possibly be found in PVC wire coatings of our cables, housings, and power cords. Unlike RoHS, Prop 65 does not establish a specific threshold for reporting on the substances of concern and instead sets forth a much less definitive standard requiring that the business demonstrate with certainty that there is “no significant risk” resulting from exposure. With respect to carcinogens, the “no significant risk” level is defined as the level which is calculated to result in not more than one excess case of cancer in 100,000 individuals exposed over a 70-year lifetime. In other words, if you are exposed to the chemical in question at this level every day for 70 years, theoretically, it will increase your chances of getting cancer by no more than 1 case in 100,000 individuals so exposed. With respect to reproductive toxicants, the “no significant risk” level is defined as the level of exposure which, even if multiplied by 1,000, will not produce birth defects or other reproductive harm. In other words, the level of exposure is below the “no observable effect level,” divided by 1,000. (The “no observable effect level” is the highest dose level which has not been associated with observable reproductive harm in humans or test animals.) Proposition 65 does not clarify whether exposure is to be measured only in normal operation, or in the event of misuse such as intentionally damaging, incinerating or consuming an Ambient Weather Product or component and Ambient Weather has not attempted to evaluate the level of exposure.

A Proposition 65warning means one of two things: (1) the business has evaluated the exposure and has concluded that it exceeds the “no significant risk level”; or (2) the business has chosen to provide a warning simply based on its knowledge about the presence of a listed chemical without attempting to evaluate the exposure. The California government has itself clarified that “The fact that a product bears a Proposition 65 warning does not mean by itself that the product is unsafe.” The government has also explained, “You could think of Proposition 65 more as a ‘right to know’ law than a pure product safety law.”

While using Ambient Weather Products as intended, we believe any potential exposure would be negligible or well within the “no significant risk” range. However, to ensure compliance with California law and our customers’ right to know, we have elected to place the Proposition 65 warning signs on Ambient Weather Products.

For further information about California’s Proposition 65, please visit https://oehha.ca.gov/prop65/background/p65plain.html

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Please Note: Estimated time of recertification completion is September 2024

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